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Theorem lmodvs0 14401
Description: Anything times the zero vector is the zero vector. Equation 1b of [Kreyszig] p. 51. (Contributed by NM, 12-Jan-2014.) (Revised by Mario Carneiro, 19-Jun-2014.)
Hypotheses
Ref Expression
lmodvs0.f  |-  F  =  (Scalar `  W )
lmodvs0.s  |-  .x.  =  ( .s `  W )
lmodvs0.k  |-  K  =  ( Base `  F
)
lmodvs0.z  |-  .0.  =  ( 0g `  W )
Assertion
Ref Expression
lmodvs0  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  ( X  .x.  .0.  )  =  .0.  )

Proof of Theorem lmodvs0
StepHypRef Expression
1 lmodvs0.f . . . . 5  |-  F  =  (Scalar `  W )
21lmodring 14374 . . . 4  |-  ( W  e.  LMod  ->  F  e. 
Ring )
3 lmodvs0.k . . . . 5  |-  K  =  ( Base `  F
)
4 eqid 2231 . . . . 5  |-  ( .r
`  F )  =  ( .r `  F
)
5 eqid 2231 . . . . 5  |-  ( 0g
`  F )  =  ( 0g `  F
)
63, 4, 5ringrz 14121 . . . 4  |-  ( ( F  e.  Ring  /\  X  e.  K )  ->  ( X ( .r `  F ) ( 0g
`  F ) )  =  ( 0g `  F ) )
72, 6sylan 283 . . 3  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  ( X ( .r `  F ) ( 0g
`  F ) )  =  ( 0g `  F ) )
87oveq1d 6043 . 2  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  (
( X ( .r
`  F ) ( 0g `  F ) )  .x.  .0.  )  =  ( ( 0g
`  F )  .x.  .0.  ) )
9 simpl 109 . . . 4  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  W  e.  LMod )
10 simpr 110 . . . 4  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  X  e.  K )
112adantr 276 . . . . 5  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  F  e.  Ring )
123, 5ring0cl 14098 . . . . 5  |-  ( F  e.  Ring  ->  ( 0g
`  F )  e.  K )
1311, 12syl 14 . . . 4  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  ( 0g `  F )  e.  K )
14 eqid 2231 . . . . . 6  |-  ( Base `  W )  =  (
Base `  W )
15 lmodvs0.z . . . . . 6  |-  .0.  =  ( 0g `  W )
1614, 15lmod0vcl 14396 . . . . 5  |-  ( W  e.  LMod  ->  .0.  e.  ( Base `  W )
)
1716adantr 276 . . . 4  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  .0.  e.  ( Base `  W
) )
18 lmodvs0.s . . . . 5  |-  .x.  =  ( .s `  W )
1914, 1, 18, 3, 4lmodvsass 14392 . . . 4  |-  ( ( W  e.  LMod  /\  ( X  e.  K  /\  ( 0g `  F )  e.  K  /\  .0.  e.  ( Base `  W
) ) )  -> 
( ( X ( .r `  F ) ( 0g `  F
) )  .x.  .0.  )  =  ( X  .x.  ( ( 0g `  F )  .x.  .0.  ) ) )
209, 10, 13, 17, 19syl13anc 1276 . . 3  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  (
( X ( .r
`  F ) ( 0g `  F ) )  .x.  .0.  )  =  ( X  .x.  ( ( 0g `  F )  .x.  .0.  ) ) )
2114, 1, 18, 5, 15lmod0vs 14400 . . . . 5  |-  ( ( W  e.  LMod  /\  .0.  e.  ( Base `  W
) )  ->  (
( 0g `  F
)  .x.  .0.  )  =  .0.  )
2217, 21syldan 282 . . . 4  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  (
( 0g `  F
)  .x.  .0.  )  =  .0.  )
2322oveq2d 6044 . . 3  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  ( X  .x.  ( ( 0g
`  F )  .x.  .0.  ) )  =  ( X  .x.  .0.  )
)
2420, 23eqtrd 2264 . 2  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  (
( X ( .r
`  F ) ( 0g `  F ) )  .x.  .0.  )  =  ( X  .x.  .0.  ) )
258, 24, 223eqtr3d 2272 1  |-  ( ( W  e.  LMod  /\  X  e.  K )  ->  ( X  .x.  .0.  )  =  .0.  )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    = wceq 1398    e. wcel 2202   ` cfv 5333  (class class class)co 6028   Basecbs 13145   .rcmulr 13224  Scalarcsca 13226   .scvsca 13227   0gc0g 13402   Ringcrg 14073   LModclmod 14366
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4212  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641  ax-cnex 8166  ax-resscn 8167  ax-1cn 8168  ax-1re 8169  ax-icn 8170  ax-addcl 8171  ax-addrcl 8172  ax-mulcl 8173  ax-addcom 8175  ax-addass 8177  ax-i2m1 8180  ax-0lt1 8181  ax-0id 8183  ax-rnegex 8184  ax-pre-ltirr 8187  ax-pre-ltadd 8191
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-nel 2499  df-ral 2516  df-rex 2517  df-reu 2518  df-rmo 2519  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-br 4094  df-opab 4156  df-mpt 4157  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-iota 5293  df-fun 5335  df-fn 5336  df-fv 5341  df-riota 5981  df-ov 6031  df-oprab 6032  df-mpo 6033  df-pnf 8258  df-mnf 8259  df-ltxr 8261  df-inn 9186  df-2 9244  df-3 9245  df-4 9246  df-5 9247  df-6 9248  df-ndx 13148  df-slot 13149  df-base 13151  df-sets 13152  df-plusg 13236  df-mulr 13237  df-sca 13239  df-vsca 13240  df-0g 13404  df-mgm 13502  df-sgrp 13548  df-mnd 13563  df-grp 13649  df-mgp 13998  df-ring 14075  df-lmod 14368
This theorem is referenced by:  lmodfopne  14405  lsssn0  14449
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